One day a prison guard noticed a series of numbers scratched on the wall of an inmate's cell. Concerned it was something to do with an escape plan, the inmate was immediately questioned. 0-2-0-4-0-0-0-8-0-10-?-?-? (the question marks are part of the riddle) Evidence Photo Guard: What do t...

Jaap Scherphuis introduced The Arithmachinist by Henry Goldman in his post Goldman's Transformation Puzzle. In the book I found a curious figure on p.52. I wonder what it means. Could you let me know? I have posted this question on Jaap Scherphuis's post as an answer. Some users commented as f...

There's four houses next to each other, somewhere in suburb Netopia. Johnny lives in number 3. The red house is in between the white and yellow houses. Mickey does not live at the end. House number 9 is not blue and doesn’t belong to Nick. Eric’s neighbor has an unusual pet. Mickey live...

My prefix is big in the middle, my infix is found at the end, my suffix was once at the front, my whole is what is required.

My prefix is found in an automobile, My infix corrects a mistake with mistakes, My suffix is practice if you're very old. My whole may be found unexpectedly.

Someone send me a puzzle in Discord and the creator said you can ask other people to help me solve. Here is one of the problems I can't solve. Could anyone help me? It is hard!

You are at a large international microbiology conference, having small talk with fellow researchers, when someone raises the famous old riddle: "If, starting from one bacterium it will take a 100 time units to have a cup-full of bacteria, how long would it take to get a cup-full if we sta...

can some body help me solve this or can you teach me how 4 7 2 9 1 one number is correct but not in right position 9 4 6 8 7 one number is correct but not in right position 3 1 8 7 2 two numbers are correct but only one is in right position 1 5 7 3 9 two numbers are correct and both in right pos...

This is a reference request: my apologies in advance if it's not entirely appropriate for this SE. I recently came across this little puzzle: There are 20 apples in a basket on the floor. Around the basket are 20 kids. How do you give each kid one apple such that at the end, one apple still remai...

I grow on a tree, bright like the sun and makes your lips pucker when you bite into one. Remember to squeeze me before eating me.What am I?

Whodunnit? #twinning Happy Easter!

Amongst three given circles with different values find the value of missing number.

I am a Seven Letter word. I like Mornings If you remove my first letter you can drink me. If you remove my first and second letters, you may not like me If you remove my last letter, you will see me on television. Who am I?

This is a Nurikabe puzzle. First form a 16 × 16 grid using the provided squares, then solve the grid by shading some cells so that the resulting grid satisfies the rules1 of Nurikabe: Numbered cells are unshaded. Unshaded cells are divided into regions, all of which contain exactly one number. ...

While walking in a small alley in Paris, you come across a safe. The number pad looks like this : There are things on the back of the safe too : "À l'aide du carré 3x3 ci-dessous et des nombres périphériques jaunes, déterminez le code du coffre-fort. Entrez la combinaison trouvée sur le...

There are 3 circles find the missing value of the middle circle.There is 4 at the bottom of last circle.

With none, I am short and may be late With one, I am folk, local to a place With two, behold me! Never first With six, and I am made with curd With seven, I’ll keep you off the ground With ten, alone with water all around With eleven, you could say I’m a friendly fish With thirte...

My friend got a note that has this morse code: .- -...... -.-- --. ... - She asked for help solving it. It doesn't have any spaces, therefore we don't know what it means. It is in English. It would be really great if you were willing to help... Thank you and have a great day!

Throughout my long life, there are a few messages I have heard which have made an impact on my life. Someone recently sent them to me, though I am far from home. However, they coded them first, so it was a bit of work before I could reply. Here is what they sent: From my mentor: ggugotcitutjxns...

I was out supporting my local labor struggle when I got this request: 9F06 7F11 7F23 7F05 7F17 8F19 7G11 8F18 7G08 7G01 7F09 9F22 2F33 9F15 2F07 2F10 7F02 So, what should I do?

Game Day When the managers of the Tampa Times and St. Pete Sun met for their annual company baseball game, everyone decided by unanimous vote that they wanted a different method of choosing which team bats first. Flipping a coin was just plain boring. They came up with a much more fun way to ...